Are smoking behaviours different in industrialized and developing countries?

Several previous studies in industrialized countries have linked both parents' smoking and low-socio-economic status with cigarette smoking in high school students. The purpose of the present study was to examine the association of parental smoking habits and family income with cigarette smoking by Brazilian students enrolled in an agricultural high school, in a developing area. As the study findings differ, additional studies are necessary to evaluate the differences in behaviour between students from developed and less developed countries.